To round 5.6 to the nearest tenth, we need to look at the digit in the hundredths place. In this case, 5.6 has a ‘6’ in the tenths place and no digit in the hundredths place (which is effectively 0). Since the hundredths digit is less than 5, we do not round up.
Therefore, 5.6 rounded to the nearest tenth remains 5.6. Rounding rules state that if the digit in the place value immediately to the right of where we are rounding is less than 5, we leave the digit we are rounding at the same value.